Slack's Decline: From Essential Tool to Overpriced Legacy Software

There was a time when Slack was the defining productivity tool of the modern workplace — fast, focused, and genuinely delightful to use. Engineers loved it. Designers adopted it enthusiastically. Even non-technical teams embraced it as the antidote to email overload. Then Salesforce acquired it for $27.7 billion, and the slow transformation from essential tool to overpriced legacy software began.

The Bloat Problem

Post-acquisition Slack has steadily accumulated features that serve Salesforce's enterprise sales strategy rather than user productivity. The interface, once praised for its simplicity, now presents users with a sidebar cluttered with features most teams never use — Canvases, Clips, Huddles, and Workflows competing for attention alongside the core messaging functionality that made Slack popular. Each addition increases cognitive load, slows application performance, and moves the product further from the focused communication tool that users originally chose.

Performance has degraded in measurable ways. Slack's Electron-based desktop application, never lightweight, now routinely consumes 1-2GB of RAM for moderate usage. Startup time has increased with each major update. Search, historically one of Slack's strongest features, returns results more slowly and less accurately than it did before the acquisition. These are not edge cases; they are everyday experiences reported by users across platforms and plan types.

The Pricing Squeeze

Slack's pricing has escalated steadily under Salesforce ownership. The Pro plan costs $8.75 per user per month; the Business+ plan runs $12.50; and the Enterprise Grid plan's pricing is negotiated individually but reportedly starts significantly higher. For a team of 50, the Pro plan alone costs $5,250 annually. The Business+ plan, which adds features that many teams consider basic — like SAML single sign-on and compliance exports — pushes the annual cost to $7,500.

These prices must be evaluated against what competitors offer at lower or zero cost. Microsoft Teams is included free with Microsoft 365 subscriptions that most businesses already pay for. Discord offers robust team communication features on its free tier. Google Chat is included with Google Workspace. The value proposition of paying a premium for Slack — a premium that increases annually — has become increasingly difficult to justify when the product's quality advantage over free alternatives has narrowed considerably.

The Free Plan Crippling

Slack's treatment of free-tier users illustrates the company's post-acquisition priorities with particular clarity. The free plan now limits message history to 90 days, effectively erasing institutional knowledge for teams that cannot afford paid plans. File storage is capped at 5GB total. App integrations are limited to 10. These restrictions are not just competitive positioning — they are deliberate degradation of a previously functional tier, designed to force conversion to paid plans through the threat of lost data and reduced functionality.

Alternatives Worth Considering

Teams evaluating Slack alternatives have increasingly compelling options. Discord has evolved from a gaming platform into a capable team communication tool with generous free features, excellent voice channels, and a lighter resource footprint. Microsoft Teams, despite its own bloat issues, offers comparable functionality at no additional cost for Microsoft 365 subscribers. For teams prioritizing data sovereignty, Mattermost and Rocket.Chat provide self-hosted open-source alternatives with full feature parity. Element, built on the Matrix protocol, offers decentralized communication with end-to-end encryption. The era of Slack as the default choice for team communication is ending, replaced by a market where multiple capable alternatives compete on price, features, and performance.